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Determine if R is older (return -1), or not (return 0 if equal, or 1 if newer) than a given version number.

compare_r_version(version)

compareRVersion(version)

Arguments

version

A string defining the version to compare to, like '2.0.0' or '1.9.1'.

Value

-1 if R is older, 0 if equal, 1 if newer. Take care: if you specify version as "2.11", and R is version "2.11.0", then the function will return 1 (newer)!

Examples

compare_r_version("2.11.0") # Note that we strongly advise to use R > 2.11.0!
#> [1] 1